D20 SYSTEM✦ Normal

The Luminous Rot of Athermoor

# Wilderness# Fey

The endless, bioluminescent swamps of Athermoor have held a fragile peace for centuries, enforced by the sacred Firefly Swarm—a living, divine light-barrier that keeps the corrupted heart of the swamp, the Luminous Primordial Tree, contained. Now, the Swarm is dying, its light flickering. Two desperate factions clash over the Tree's fate: one seeks to destroy it to save the swamp's mortal inhabitants, the other to purify it to save the fey spirits and the swamp's very soul. A band of seasoned adventurers, drawn by the fading light and whispers of immense power or apocalyptic ruin, must navigate the treacherous mire and make a choice that will define the world's nature.

Chronicle Prelude

You arrive at Mosshollow, a stilt-town clinging to the swamp's edge, built of rot-resistant cypress and illuminated by jars of captured, sickly fireflies. The air hums with anxiety. Fishermen report their nets catching only glowing, mutated fish. Shamans speak of the fey-wards failing. A palpable sense of dread hangs in the damp air, thicker than the evening fog.

Environmental Traits

The Firefly Swarm, a divine construct of pure light and life, has protected Athermoor for ages, holding back the Luminous Primordial Tree—a fey-god of growth and rot now maddened by a creeping, silent corruption from the Feywild's deepest wounds. With the Swarm failing, the Tree's influence is spreading: plants grow and die in seconds, animals become luminous predators, and the swamp's very ley-lines are twisting. The region faces ecological collapse and fey-spawned apocalypse.

Legendary Archetypes

Rayan

HP:45

STR:16

WIS: 12

CHA:11

Key Factions & Autonomous Nodes (8)

Commander Vael
A battle-scarred human woman in her late 40s, with close-cropped grey hair and one milky, blind eye. She wears practical, stained leather armor over a faded green tunic, bearing the sigil of a charred tree—the mark of the Ashen Covenant. Her movements are precise and weary, and she carries the scent of woodsmoke and bog-water.
Caelum Thornweave
An ancient dryad whose form is half-merged with the trunk of a cypress tree. Her skin is bark-like, and her hair is a cascade of moss and tiny, pale flowers. Her eyes glow with a soft, green light, but her expression is one of profound sorrow. The roots of her tree seem to shudder with each distant pulse of the corrupted Tree.
Moss Earl
A stout, weathered halfling with a tangled beard woven with swamp reeds and small charms. He wears a patched oilskin coat and smells of fish, river mud, and pipe-weed. His eyes are shrewd and tired, constantly scanning the stilt-town's walkways.
Old Mycelius
A small, ambulatory myconid sprout, no taller than a halfling. Its cap is a soft blue-grey, dotted with glowing cyan pustules that pulse gently. It moves with a slow, swaying gait, leaving a faint trail of luminescent spores. It appears ancient, its form slightly stooped.
Sister Lucent
A corrupted fey dryad, a 'Luminous Matriarch.' Her once-graceful form is now twisted; bark-like skin is split by weeping, golden sap, and her eyes burn with a frantic, unstable light. Her hair is a nest of thorny, glowing vines. She radiates an aura of painful, maddening growth.
The Ashen Prophet
A gaunt human male in tattered, ash-grey robes. His skin is pale as parchment, marked with ritual scars resembling burning branches. His eyes are fever-bright, and his voice is a hoarse whisper that carries an unsettling conviction. He smells of incense and sulfur.
Veridian Sprite
A tiny, winged humanoid, no larger than a large insect. Its skin is a vibrant green, and its dragonfly-like wings shimmer with an oily iridescence. It moves in quick, darting motions, leaving a faint trail of glittering dust.
Echo of the Swamp
A vast, shimmering apparition that seems to be made of the swamp itself—watery light, drifting pollen, tangled roots, and the faint cries of distant birds. It coalesces in the Inner Sanctum, a silent, watchful presence that does not speak in words but in feelings and fragmented images.

Chronicle Prelude

Environmental Traits

Legendary Archetypes

✦ Related Cases ✦

The Pranks of the Verdant Court

The Shambling Mound Rampage of Shadowthorn Wood